<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .block{
            height: 200px;
            background: red;
            /* display: block; */
        }
        .inline{
            /* height: 100px; */
            background: green;
            display: inline;    /*行内 设置不了宽高 和文字大小一样*/
        }
        .inline-block{
            display: inline-block;
            width: 200px;
            height: 200px;
            background: blue;
            
        }
    </style>
</head>
<body>
    <div class="block">
        block
    </div>
    <div class="inline">inline</div>
    <div class="inline-block">inline-block</div>
</body>
</html>